Antenna for portable communication device equipped with a hinge

Abstract

A portable communication device includes a first part including a first antenna element located within and extending through a portion of the first part and radio circuit feeding antenna elements, a second part hingedly joined to an end of the first part for providing at least one open and one closed position of the phone, and a hinge element connected to the first and second parts. The hinge element stretches along the end of the first part for providing rotation of one part in relation to the other part around a first axis having a first and second end. The hinge element includes a second antenna element. The radio circuit is connected between the first and second antenna elements.

Description

RELATED APPLICATIONS[0001]The present application is a 35 U.S.C. §371 national phase application of PCT International Application No. PCT / EP2003 / 013001, having an international filing date of Nov. 20, 2003, and claiming priority to European Patent Application No. 02026232.5, filed Nov. 26, 2002, and U.S. Provisional Application No. 60 / 431,505, filed Dec. 4, 2002, the disclosures of which are incorporated herein by reference in their entireties. The above PCT International Application was published in the English language and has International Publication No. WO 2004 / 049502 A1.TECHNICAL FIELD OF THE INVENTION[0002]The present invention relates to the field of antennas and more particularly to a portable communication device with a hinge including an in-built antenna as well as an antenna arrangement for a portable communication device, which includes a hinge.DESCRIPTION OF RELATED ART[0003]There is a trend within the filed of portable communicating devices, and especially within the ...

AI Technical Summary

Benefits of technology

[0008]The present invention is directed towards solving the problem of providing an antenna that does not protrude from any of the parts of a portable communication device having two parts joined to each other by a hinge and that lets a first antenna element be as large as possible for better efficiency, while at the same time providing better broadband performance of the whole antenna.

[0009]One object of the present invention is thus to provide a portable communication device having two parts joined to each other by a hinge and including an antenna that does not protrude from any of the parts of a portable communication device and lets a first antenna element be as large as possible for better efficiency, while at the same time providing better broadband performance for the whole antenna.

[0034]Another object of the present invention is directed towards providing an antenna arrangement for a portable communication device having two parts joined to each other by a hinge element, where the antenna does not protrude from any of the parts and lets a first antenna element be as large as possible for better efficiency.

[0038]The invention has the following advantages. It allows the first antenna element to be made as large as possible while at the same time not having any protruding bulky parts, since the second antenna element is placed in the hinge element. It also provides good broadband properties. The antenna can be provided in a phone where one part has two sections that can be twisted in relation to each other. The antenna according to the invention will not hinder such twisting or have its efficiency degraded by such twisting.

Problems solved by technology

These antennas require a substantial space inside the phone and are sensitive to folding and unfolding.

If placed on a twistable upper half, usually containing the main display, such a PIFA will be turned to the inside of the part of the phone, preventing any useful radiation.

Since the antenna is protruding from the phone body, it makes the phone larger and more bulky than it has to be, especially when folded.

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